PIC16C55A-04/P【PDF 184/194 页】IC MCU OTP 512X12 28DIP

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2002 Microchip Technology Inc.

Preliminary

DS30453D-page 7

PIC16C5X

2.0

PIC16C5X DEVICE VARIETIES

A variety of frequency ranges and packaging options

are available. Depending on application and production

requirements, the proper device option can be selected

using the information in this section. When placing

orders, please use the PIC16C5X Product Identifica-

tion System at the back of this data sheet to specify the

correct part number.

For the PIC16C5X family of devices, there are four

device types, as indicated in the device number:

C, as in PIC16C54C. These devices have

EPROM program memory and operate over the

standard voltage range.

LC, as in PIC16LC54A. These devices have

EPROM program memory and operate over an

extended voltage range.

CR, as in PIC16CR54A. These devices have

ROM program memory and operate over the

standard voltage range.

LCR, as in PIC16LCR54A. These devices have

ROM program memory and operate over an

extended voltage range.

2.1

UV Erasable Devices (EPROM)

The UV erasable versions offered in CERDIP pack-

ages, are optimal for prototype development and pilot

programs.

UV erasable devices can be programmed for any of the

four oscillator configurations. Microchip’s

PICSTART Plus(1) and PRO MATE programmers

both support programming of the PIC16C5X. Third

party programmers also are available. Refer to the

Third Party Guide (DS00104) for a list of sources.

2.2

One-Time-Programmable (OTP)

Devices

The availability of OTP devices is especially useful for

customers expecting frequent code changes and

updates, or small volume applications.

The OTP devices, packaged in plastic packages, per-

mit the user to program them once. In addition to the

program memory, the configuration bits must be pro-

grammed.

2.3

Quick-Turnaround-Production

(QTP) Devices

Microchip offers a QTP Programming Service for fac-

tory production orders. This service is made available

for users who choose not to program a medium to high

quantity of units and whose code patterns have stabi-

lized. The devices are identical to the OTP devices but

with all EPROM locations and configuration bit options

already programmed by the factory. Certain code and

prototype verification procedures apply before produc-

tion shipments are available. Please contact your

Microchip Technology sales office for more details.

2.4

Serialized Quick-Turnaround-

Production (SQTP

SM) Devices

Microchip offers the unique programming service

where a few user defined locations in each device are

programmed with different serial numbers. The serial

numbers may be random, pseudo-random or sequen-

tial. The devices are identical to the OTP devices but

with all EPROM locations and configuration bit options

already programmed by the factory.

Serial programming allows each device to have a

unique number which can serve as an entry code,

password or ID number.

2.5

Read Only Memory (ROM) Devices

Microchip offers masked ROM versions of several of

the highest volume parts, giving the customer a low

cost option for high volume, mature products.

Note 1: PIC16C55A and PIC16C57C devices

require OSC2 not to be connected while

programming with PICSTART Plus

programmer.

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